发明名称 |
INTEGRATED LNT-TWC CATALYST |
摘要 |
A layered catalyst composite for the treatment of exhaust gas emissions, effective to provide lean NOx trap functionality and three-way conversion functionality is described. Layered catalyst composites can comprise catalytic material on a substrate, the catalytic material comprising at least two layers. The first layer comprising rare earth oxide-high surface area refractory metal oxide particles, an alkaline earth metal supported on the rare earth oxide-high surface area refractory metal oxide particles, and at least one first platinum group metal component supported on the rare earth oxide-high surface area refractory metal oxide particles. The second layer comprising a second platinum group metal component supported on a first oxygen storage component (OSC) and/or a first refractory metal oxide support and, optionally, a third platinum group metal supported on a second refractory metal oxide support or a second oxygen storage component. |
申请公布号 |
WO2015143191(A1) |
申请公布日期 |
2015.09.24 |
申请号 |
WO2015US21523 |
申请日期 |
2015.03.19 |
申请人 |
BASF CORPORATION |
发明人 |
XUE, WEN-MEI;ATTILIO, SIANI;HOCHMUTH, JONN, K.;KINNE, MARKUS;KIELBASSA, STEFAN |
分类号 |
B01J23/42;B01D53/94;B01J37/02 |
主分类号 |
B01J23/42 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|